Discrete connections on the triangulated manifolds and difference linear equations

Details Discrete connections on the triangulated manifolds and difference linear equations Discrete connections on the triangulated manifolds and difference linear equations

2003-03-13

arxiv.org/abs/math-ph/0303035v2

Physics

Mathematical Physics

Latex 17 pages, several technical mistakes are corrected, complete solution of the reconstruction problem for higher dimension

Scientific paper

Following the previous authors works (joint with I.A.Dynnikov) we develop a theory of the discrete analogs of the differential-geometrical (DG) connections in the triangulated manifolds. We study a nonstandard discretization based on the interpretation of DG Connection as linear first order (''triangle'') difference equation acting on the scalar functions of vertices in any simplicial manifold. This theory appeared as a by-product of the new type of discretization of the special Completely Integrable Systems, such as the famous 2D Toda Lattice and corresponding 2D stationary Schrodinger operators. A nonstandard discretization of the 2D Complex Analysis based on these ideas was developed in our recent work closely connected with this one. A complete classification theory is constructed here for the Discrete DG Connections based on the mixture of the abelian and nonabelian features.

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